blktrace: handle flush/sync replay

[fio.git] / blktrace.c

diff --git a/blktrace.c b/blktrace.c
index 29d1ff748d1b7b1e3017429f216f5b91e206137c..b37a54e9e1cd36ec75dffb7e9a03bfbec8e3f886 100644 (file)
--- a/blktrace.c
+++ b/blktrace.c
@@ -326,6 +326,25 @@ static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
        store_ipo(td, t->sector, t->bytes, rw, ttime, fileno, bs);
 }
 
+static void handle_trace_flush(struct thread_data *td, struct blk_io_trace *t,
+                              unsigned long long ttime)
+{
+       struct io_piece *ipo;
+       unsigned int bs;
+       int fileno;
+
+       ipo = calloc(1, sizeof(*ipo));
+       init_ipo(ipo);
+       fileno = trace_add_file(td, t->device, &bs);
+
+       ipo->delay = ttime / 1000;
+       ipo->ddir = DDIR_SYNC;
+       ipo->fileno = fileno;
+
+       dprint(FD_BLKTRACE, "store flush delay=%lu\n", ipo->delay);
+       queue_io_piece(td, ipo);
+}
+
 /*
  * We only care for queue traces, most of the others are side effects
  * due to internal workings of the block layer.
@@ -361,6 +380,8 @@ static void handle_trace(struct thread_data *td, struct blk_io_trace *t,
                handle_trace_notify(t);
        else if (t->action & BLK_TC_ACT(BLK_TC_DISCARD))
                handle_trace_discard(td, t, delay, ios, bs);
+       else if (t->action & BLK_TC_ACT(BLK_TC_FLUSH))
+               handle_trace_flush(td, t, delay);
        else
                handle_trace_fs(td, t, delay, ios, bs);
 }